TightVNC is a free remote control software package. With TightVNC, you can
see the desktop of a remote machine and control it with your local mouse and
keyboard, just like you would do it sitting in the front of that computer.
TightVNC is:

   * free for both personal and commercial usage, with full source code available,
   * useful in administration, tech support, education, and for many other purposes,
   * cross-platform, available for Windows and Unix, with Java client included,
   * compatible with standard VNC software, conforming to RFB protocol specifications.

TightVNC also ships with Xvnc.  A headless X server that speaks the VNC
protocol.
